An adjustable seat for a vehicle includes a seat part having a first seat position and a second seat position relative to a floor of the vehicle. The seat also includes a quick unlocking device that unlocks the adjusting device to adjust the seat. An adjusting device moves the seat part between the first seat position and the second position. The vehicle seat also includes a backrest part pivotably connected to the seat part. The backrest part is operatively connected to the quick unlocking adjusting device such that pivoting of the backrest part between an upright position and a folded over position unlocks the adjusting device.
